The Bruce Murray Space Image Library
Recurring slope lineae (RSL) in Newton Crater, Mars
Filed under pretty pictures, amateur image processing, Mars, Mars Reconnaissance Orbiter
Recurring slope lineae are narrow (0.5-5 m wide), relatively dark-toned features that form on steep (25-40˚), southern-hemisphere slopes, and that appear in early spring, grow longer in the downslope direction during spring and summer, and fade during autumn and winter.
NASA / JPL / UA / Emily Lakdawalla
Original HiRISE image
Color data has been overlaid on higher-resolution red-channel data. The red-channel data was sharpened first.
Read more about this image and recurring slope lineae here.
Here is a comparison of the same crater wall on two different dates.
NASA / JPL / UA / Joe Levy
Recurring slope lineae at Newton Crater, Mars, in the early season (left) and the late season (right)
Recurring slope lineae flow downhill from the rocky cliffs at right to the sandy slopes at left. White bars shown the distance that individual lineae have flowed. Left image is a portion of ESP_022267_1380. Right image is a portion of ESP_022689_1380.
Original image data dated on or about May 30, 2011.
This image is in the public domain.
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